Detection of naturally fluorescent pesticides on silica gel layers

✍ Scribed by V. Mallet; D. Surette; G.L. Brun

• Publisher: Elsevier Science
• Year: 1973
• Tongue: English
• Weight: 428 KB
• Volume: 79
• Category: Article
• ISSN: 1873-3778
• DOI: 10.1016/s0021-9673(01)85291-2

✦ Synopsis

A number of fluorescent pesticides, namely, benomyl, coumatetralyl, diphacinone, fuberidazolc, propyl isome and quinomethionate, have been investigated on silica gel thin-layer chromatograms. Pluorescence spectra have been measured and visual detection limits have been estimated. In most cases, as little as a few nanograms can be detected. In addition, the effects of heat treatment on the fluorescence have been observed. The most pronounced effect is a large bathochromic shift of the fluorescence excitation and emission maxims.